45. What can be inferred from the first two paragraphs about diamonds from Liberia?
(A) They are mostly conflict-free.
(B) Most of them are labeled correctly.
(C) They are still traded to support wars.
(D) They have been carefully investigated by the KPCS.
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統計: A(0), B(1), C(1), D(0), E(0) #3363626
統計: A(0), B(1), C(1), D(0), E(0) #3363626